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Meaning of “dementia” in the English Dictionary

"dementia" in British English

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dementianoun [U]

uk   /dɪˈmen.ʃə/  us   /dɪˈmen.ʃə/ specialized
a ​medicalcondition that ​affectsespeciallyoldpeople, ​causing the ​memory and other ​mentalabilities to ​graduallybecomeworse, and ​leading to ​confusedbehaviour: The most ​commonform of dementia is Alzheimer's ​disease.
(Definition of dementia from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"dementia" in American English

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dementianoun [U]

 us   /dɪˈmen·ʃə/
a ​disease or ​condition that ​exists esp. among ​olderpeople, and that ​results in the ​gradualloss of ​mentalabilities, such as the ​ability to ​think, ​reason, and ​remember things
(Definition of dementia from the Cambridge Academic Content Dictionary © Cambridge University Press)
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